單項(xiàng)選擇題

吊桿停用時(shí)，穩(wěn)索必須要收起來(lái)。（）

A. When the derrick is stopped, the guy must be stowed.
B. When the derrick is stopped, the guy must be topped.
C. When the derrick is stopped, the guy must be lowered.
D. When the guy is stopped, the derrick must be stowed.

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單項(xiàng)選擇題

作為一名值班水手，你必須懂得如何調(diào)整吊桿。（）

A. As an officer on duty, you must know how to adjust derricks.
B. As a sailor on duty, you must know how to adjust derricks.
C. As a sailor on duty, you must know how to operate cranes.
D. As an officer on duty, you must know how to operate cranes.

單項(xiàng)選擇題

很多船上在每個(gè)艙口處都有兩個(gè)吊桿及兩臺(tái)起貨機(jī)。（）

A. Many ships have two derricks at each hatch.
B. Many ships have two winches at each hatch.
C. Many ships have two derricks and two winches at each hatch.
D. Many ships have two derricks and two winches at each hatch cover.

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吊桿停用時(shí)，穩(wěn)索必須要收起來(lái)。（）

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作為一名值班水手，你必須懂得如何調(diào)整吊桿。（）

很多船上在每個(gè)艙口處都有兩個(gè)吊桿及兩臺(tái)起貨機(jī)。（）

吊桿停用時(shí)，穩(wěn)索必須要收起來(lái)。（）

作為一名值班水手，你必須懂得如何調(diào)整吊桿。（）

很多船上在每個(gè)艙口處都有兩個(gè)吊桿及兩臺(tái)起貨機(jī)。（）